US 12,072,102 B2
Fuel nozzle with multiple air passages
Mats Andersson, Stockholm (SE); Rickard Heinefeldt, Finspong (SE); Olle Lindman, Finspong (SE); Magnus Persson, Svärtinge (SE); Patrik Jaerling, Linköping (SE); and Atanu Kumar Kundu, Linköping (SE)
Assigned to Siemens Energy Global GmbH & Co.KG, Munich (DE)
Filed by Siemens Energy Global GmbH & Co. KG, Munich (DE)
Filed on Mar. 30, 2023, as Appl. No. 18/128,589.
Claims priority of application No. 22172962 (EP), filed on May 12, 2022.
Prior Publication US 2023/0366552 A1, Nov. 16, 2023
Int. Cl. F23R 3/28 (2006.01)
CPC F23R 3/28 (2013.01) 16 Claims
OG exemplary drawing
 
1. A fuel nozzle for use in a combustion arrangement, comprising:
a main body extending from a cold side to an opposite hot side, and at least five air passages arranged next to each other extending from the cold side towards the hot side, and
a fuel distribution chamber surrounding the air passages next to the cold side,
wherein the air passages cross the fuel distribution chamber,
wherein passage walls separate the air passages from the fuel distribution chamber,
wherein fuel holes are arranged within the passage walls,
wherein the air passages define respective flow axes, and the respective flow axes are, at least over a portion, curved and/or inclined towards a center axis of the fuel nozzle from the cold side towards the hot side, and
wherein the air passages are configured to cause flows emanating therefrom to converge on each other.